Car truck



Aug. 10 1926.

F. L. BARBER ET AL CAR TRUCK Filed Jan. 28, 1924 Aug. 10 1926.

F. l.. BARBERET AL CAR TRUCK ljd/ inw.

/0 I/v vE/v T035.

fwnv w. WEBB.

Patented Aug. 10, 1926.

"UNITED STATES 1,595,131 PATENT OFFICE.

FRANKLIN L. :BARBER AND EDWIN W. `WEBB, OF CHICAGO, ILLINOIS, ASSIGNORS TO STANDARD CAR TRUCK COMPANY, F CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

CAP. TRUCK.'

Application led January 28, 1924. Serial No. 689,019.

This invention relates to al railway truck and particularly to a type of truck known as an arch bar truck.

It is an object of this invention to provide such a truck of simple and efficient construction comprising a side frame having bolster columns in which a vertical movable rollerseat is disposed adapted to carry rollers for supporting the end of a bolster ar ranged for endwise movement transversely of the side frame. l

It is a further object of the invention to providev a truck comprising a side frame having such bolster columns of U-shape or channel shape in cross section with the open sides facing each other and in the channels of which the roller seat and end of the bolster are disposed for their respective movements.

It is a further object of the invention to provide a truck having such a side frame in which a-plurahty of springs support a roller seat, said springs being supported at different levels in said side frame and also preferably having their tops disposed at .different levels.

It is still another object of the invention to provide a truck having such aside frame and roller seat, which seat has a depressed central portion or channel shape in which the rollers are carried and into which a downwardly projecting central portion of the bolster is disposed, which latter portion rests on the rollers.

It is still another object of the invention to provide such a truck having a side frame with spaced bolster columns and a crown piece connecting the same, which crown piece has a channe`1` extending thereacross, said channel being extended at the outer side of each column and adapted to receive a compression member therein, which compression member is secured by bolts passing therethrough and through the extended portion of said channel.

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawings in" which like reference characters refer to the f same parts throughout the different v iews,

and in which- Fig. 1 is a view in side elevation of a por. tion of the truck;

Fig. 2 is a horizontal sectie-11 taken substantially on the line 2-2 of Fig. l;

p Fig. 3 is a view in vertical section of one end of the truck, the bolster being shown in sid elevation, this igur'erbeing on a reduced sca e;

Fig. 4 is a view partly in side elevation and partly in central vertical section of the roller seat; and

Fig. 5 is a view partly in end elevation and partly in central vertical section of the roller seat, the same being shown on an en` larged scale.

Referring to the drawings, a railway truck is shown having a side frame comprising a compression member 1 and a tension member 2, a portion of one wheel of the truck being indicated in dotted lines as 3. The members 1 and 2 converge at the ends of the side frame and extend to the journal box in the usual manner. The side frame also comprises spaced bolster columns 4, which columns are substantially of U-shape or channel sha e in cross section, as shown in Fig. 2, an have their open sides facing each other. The columns are joined at the top by a crown piece 5 having a channel extending longitudinally therethrough and the sides and bottom of said channel are extended at the outer sides of the column 4, as shown at 5a. The compression member l is secured to the crown piece 5 by headed and nutted bolts' 6 extending therethrough and through the bottom of the projected port-ion 5a. The columns 4 are joined at their lower ends by a base portion.7, the lower surface of which is formed on a curve, the center of which is disposed in the vertical center line of the side frame. Adjacent .the columns the basehas projecting flanges 7 a forming channels -in which is disposed the lower curved portion of the tension member 2 and it will be noted that the side portions of the members 2 are tangential with their curved portion. The tensionmember is secured tothe base member 7 by headed and nutted bolts passing through the portion 7a at the sides of member 2, which bolts also extend through clips 8 from which extend the horizontal portions 8a to which the connecting plank member 9 is riveted. The base member 7 also has a comparatively small pin 7 b projecting into the central hole in the tension member 2,. As shown in Fig. 1, the base member 7 upper ends and has further depending'ribs proper position.

'is formed with a central depressed or chanhearing for a plurality of springs 12 and said portion 11 of said plate is of curved formation partially to embrace the outer side of the springs disposed therein. It will thus be seen that the springs 12 are disposed at different levels. ln the -embodiment of the invention illustrated, there are four of the springs 12 seated in the depressed portion of the plate 11 or the base 7, while there is one spring at each side of these springs which is seated on the raisedportion of the plate 11 or of the base 7. Supported upon the top of the springs 12 is a roller bearing member 13. The member 13 also has a central depressed or channel shaped portion 13a and raised end portions 13b and has in its central .depressed portion the spaced ribs 13C between which the seats receiving the bearing rollers are formed. The said member 13 has depending anges 13d at its sides adapted to embrace the springs 12 at their 13e adapted to be disposed between the end springsv 12 and the adjacent springs, as shown in Fig. 2. A central and circular depending iiange or rib 13t is disposed between the four center springs and acts to retain these springs in properly spaced relation.

The raised portions 13b of the member 13,

likewise, have depending circular flanges or ribs 13g adapted to extend into the center of the end'springs 12 to hold the same in The end portions of the roller seat 13 are substantially rectangular in shape and fit loosely into the channels of the columns.

The bolster member 14-has a downwardl projecting central portion 14a formed wit spaced ribs defining the roller seats, whichv portion extends intoy the central depressed portion 13aof the roller seat and is supported upon bearing rollers 15 which rest on the seat 13. The bolster extends ,over the raised portions 13"- of the seat member and has laterally projecting rectangular portions 14b disposed in the channel of the columns 4. The width ,of the portion 14h is considerably less than the width of the channel in the columns so that endwiseplay is permitted for .the bolster. In one practical embodiment of this invention this lateral play is substantially two inches.

From the above description Vit is seen thatU applicants'have* provided a `simple and efiicient railway truck in which endwisemovej ment of the bolster is. permitted. The bolster and roller seat are compactly housed in the bolster columns and guided therein in their vertical movement and the end of the bolster and the roller seat are compactly arranged. By having the central part of the bolster disposed in the rollerseat, additional guiding elfect is obtained for the bolster and the sufficient number of supporting springs are provided for, while at the same time, a strong base is retained for the bolster columns. The parts are, therefore very conveniently and compactly arranged and effectively held in proper position in their respective movements. `The invention has been used in actual practice and found very efficient for the purpose intended.

It will, of course, be' understood, that various changes may be made in the. form, details, arrangement and proportions of the parts without departing from the scope of applicants invention, which, generally stated, consists in a device capable of carrymg out the objects above set forth, such as shown and described and defined in the appended claims. i

lVhat is claimed is:

1. A railway car truck comprising a side frame having spaced bolster columns and a central depressed Vchannel-shaped base portion therebetween with elevated shelf portions at each side thereof, a roller seathavpressed portion of said seau-additional springs supported on the said shelf p0rtions of the side frame and supporting the raised end portions'of said seat, said seat having a ange depending from its sides enclosinggfthe upper ends'of said springs, and means' depending from said seat between said springs for holding the same in position.

2. A railway car truck comprising a side frame having'spaced bolster columns,acen tral depressed channel-shaped base portion therebetween with elevated shelfr portions at each side thereof, a connecting member of channel shape resting on said. depressed portion, a plate having a depressed central portion disposed in said depressed portion of said'frame and raised side portions resting on said shelf portions, a plurality of springs supportedonthe central depressed l portions of said plate, additional vsprings portion of V'said lplate having fianged enas 4adapted to partially embrace saidplurality lof springs. i

3. A railwaycar truck comprising-a side frame having spaced bolster columns and a crown piece connecting the same having a channel extending longitudinally in its top portion, said crown piece having ends extending at each side of said columns, a compression member seated in said channel, and bolts passing through saidcompression member in thel bottom of said extended portions securing said compression member and columns together.

.4. A railway car truck comprising aside frame having spaced bolster columns of channel-shape in cross section with said channels facing each other, a `roller seat extending between said columns and vvertically movable therebetween, a single set of rollers carried on said seat, a bolster supported on said rollers having lateral projections disposed in said channels of said` columns and vertically movable therein, said projections being of less width than the width of said channels whereby longitudinal movement of the bolster transversely of the side frame is permitted, a set of springs .beneath the central portion of said-roller seat, additional springs at each side of said set of springs, said roller seat having raised extensions at either side of said rollers prnjecting over and resting on said additional springs and extending into the channels of said columns whereby the weight of said bolster is carried on said rollers and equally distributed by said roller seat over all o1 said springs.

5. A railway car truck ofthe arch bar type comprising a side frame having spaced bolster columns of channel shape in cross section with said channels facing each other, a roller seat extending between said columns having end portionsy substantially fitting in said channels and vertically movable therein, a single set of bolster supporting rollers disposed substantially in one plane at the central portion of said roller seat, a central setof springs disposed under the central portion of said roller seat and additional springs at a higher level than said set at each side of said set, said end portions of said roller seat extending over and respectively supported on said addisaid roller seat having end portions extending over and sup orted by said additional springs whereby t e load on said single set of rollers is distributed over all of said springs.

In testimony whereof we aiix our signatures. v

' FRANKLIN L. BARBER.

EDWIN W. WEBB.

.tional springs whereby the load on said sin- 

